diff --git a/res/layout/fragment_conversation.xml b/res/layout/fragment_conversation.xml
index 22f783d3c..4e0d2030c 100644
--- a/res/layout/fragment_conversation.xml
+++ b/res/layout/fragment_conversation.xml
@@ -45,14 +45,16 @@
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:layout_above="@+id/textsend"
-        android:layout_below="@+id/info_box"
         android:layout_alignParentLeft="true"
+        android:layout_below="@+id/info_box"
         android:background="#e5e5e5"
-        tools:listitem="@layout/message_sent"
         android:divider="@null"
-		android:dividerHeight="0dp"
-		android:transcriptMode="alwaysScroll"
-		android:listSelector="@android:color/transparent">
+        android:dividerHeight="0dp"
+        android:listSelector="@android:color/transparent"
+        android:transcriptMode="alwaysScroll"
+        tools:listitem="@layout/message_sent"
+        android:stackFromBottom="true">
+
     </ListView>
     <LinearLayout
         android:id="@+id/info_box"
diff --git a/src/de/gultsch/chat/services/XmppConnectionService.java b/src/de/gultsch/chat/services/XmppConnectionService.java
index 4e75f7aa9..7ff099573 100644
--- a/src/de/gultsch/chat/services/XmppConnectionService.java
+++ b/src/de/gultsch/chat/services/XmppConnectionService.java
@@ -210,16 +210,18 @@ public class XmppConnectionService extends Service {
 				} else if (show.getContent().equals("dnd")) {
 					contact.updatePresence(fromParts[1], Presences.DND);
 				}
-				Element x = packet.findChild("x");
-				if ((x != null)
-						&& (x.getAttribute("xmlns").equals("jabber:x:signed"))) {
-					try {
-						Log.d(LOGTAG,"pgp signature for contact" +packet.getAttribute("from"));
-						contact.setPgpKeyId(getPgpEngine().fetchKeyId(packet.findChild("status")
-								.getContent(), x.getContent()));
-						databaseBackend.updateContact(contact);
-					} catch (OpenPgpException e) {
-						Log.d(LOGTAG,"faulty pgp. just ignore");
+				PgpEngine pgp = getPgpEngine();
+				if (pgp!=null) {
+					Element x = packet.findChild("x");
+					if ((x != null)
+							&& (x.getAttribute("xmlns").equals("jabber:x:signed"))) {
+						try {
+							Log.d(LOGTAG,"pgp signature for contact" +packet.getAttribute("from"));
+							contact.setPgpKeyId(pgp.fetchKeyId(packet.findChild("status")
+									.getContent(), x.getContent()));
+						} catch (OpenPgpException e) {
+							Log.d(LOGTAG,"faulty pgp. just ignore");
+						}
 					}
 				}
 				databaseBackend.updateContact(contact);